This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX450, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI32 Standard Air Cylinder SI32AX450
The AirTAC SI32 Standard Air Cylinder SI32AX450 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 450mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX450, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX450
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32AX450
The AirTAC SI32AX450 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 450mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32AX450, a direct upgrade retaining the exact interface, stroke, and force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU uses a SUS420J2 stainless rod but lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI32 Standard Air Cylinder SI32AX450 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX450 |
| Bore size | Ø32 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32AX450 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX450 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32AX450
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI32 Standard Air Cylinder SI32AX450 Is Used
Compact Part Ejection
Uses the 402N push force at 0.5MPa to push light machined components out of a fixture over the 450mm travel distance.
Transfer Diversion
Actuates a deflector gate on a packaging line, where the SUS420J2 stainless rod provides corrosion resistance against washdowns.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX450 with the SAI32AX450
To replace the SI32AX450, order the SAI32AX450. It drops into existing ISO 15552 fixtures with the same 32mm bore, 450mm stroke, G1/8 port, and M10x1.25 rod thread. Confirm your mounting accessory (LB, FA, TC) and note this non-magnet SKU cannot hold a switch. If sizing up, the 40mm bore offers more force; if down, verify your load. At 450mm, prevent rod bending by using external guides to absorb side loads. For load holding on air loss, add an external pilot check valve or rod lock, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX450
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32AX450 FAQ
Yes, the SI32AX450 is discontinued. The direct replacement is the SAI32AX450. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 450mm stroke, G1/8 port, and mounting interface.
This double-acting cylinder has a G1/8 port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. It operates at 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX450
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX450 replacement — usually within 7-8 hours.